In a small skillet combine all the chopped vegetables with the garlic, onions and Italian dressing and cook on medium heat while stirring.
Take one tortilla (whole grain if available) and fill half of the tortilla with the vegetable mixture.
Sprinkle the mixture with the cheeses and fold over the tortilla.
If you have a George Foreman or other griller, place the quesadilla on the grill until the cheese melts. Otherwise place the quesadilla on a cookie sheet and put in the oven at 350 °F (175 °C) until cheese melts. For a quicker solution, put in the microwave on high for 30 seconds.
Once the cheese has melted cut into three triangles and serve with fat free sour cream or a fresh chunky salsa.
There are 251 calories in 1 serving of Vegetable Quesadilla.